Question
The average of five even numbers is 64. If we replace
two of these even numbers, 84 and 92, with a single even number X, the new average decreases by 4. What is the value of X?Solution
Sum of 5 even numbers = 5 x 64 = 320 Sum of after 2 replacing even numbers by X = 320 - (84 + 92) + X = 320 - 176 + X Now Sum of 4 even numbers = (64 - 4) x 4 = 240 According the question, we get 320 – 176 + X = 240 X = 240 – 320 + 176 X = 96
Find the wrong number in the given number series,
29, 56, 120, 245, 501, 804Â
27, 35, 51, 75, 109, 147
1024 3072 384 1152 145 432
80, 88, 101, 122, 150, 185
6, 22, 76, 314, 1580, 9600
11, 12, 20, 58, 234, 1168
Find the wrong number in the given number series.
1, 4, 9, 16, 27, 36
There are two wrong number series given in question and three relationships has been derived from that you have to answer the correct relationship betwe...
63Â Â Â Â Â 98Â Â Â Â Â 140Â Â Â Â Â 192Â Â Â Â Â 251Â Â Â Â 318
...- Find the wrong number in the given number series.
12, 20, 31, 45, 62, 84
